Lake County, Illinois Weather and Climate Synopsis

Regional Hourly Observations Nowcast: 0-6 Hour Forecast Forecast: 7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts

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A joint service of the UK Ag Weather Center and the National Weather Service.

Current Surface Map, [TWC], Yesterday's Highs , Lows
Map of 24 Hr Rainfall (7AM - 7AM EST), 7 Day Rainfall Animation

NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  PTSUNNY   84  59  42 SW13G18   29.83F HX  84  TC  29   
CHICAGO-MIDWAY PTSUNNY   85  57  38 S10G21    29.84F HX  84  TC  29   
AURORA         MOSUNNY   84  59  42 S10       29.84S HX  84  TC  29   
JOLIET*        MOSUNNY   83  61  47 S8        29.85F HX  83  TC  28   
WAUKEGAN       MOSUNNY   78  63  59 SE12      29.84S HX  80  TC  26   
DUPAGE AIRPORT MOSUNNY   83  60  45 S13G21    29.84S HX  83  TC  28   
KANKAKEE*      MOSUNNY   83  59  43 S7        29.88S HX  83  TC  29   
WHEELING       MOSUNNY   84  60  44 SW9       29.85S HX  84  TC  29   
MORRIS*        MOSUNNY   85  60  41 S10       29.84S HX  85  TC  30   
ROMEOVILLE*    MOSUNNY   84  63  48 S13       29.86F HX  85  TC  29   
LANSING*       PTSUNNY   81  65  57 SW12      29.87S HX  83  TC  27   
NORTHERLY ISL*   N/A     72  60  66 CALM        N/A  TC  22           

Current Temperatures, Dewpoint Map, RH, Wind, Regional Obs, Surface 4-Panel
Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford

.TONIGHT...Mostly clear in the evening, then becoming mostly
cloudy late in the evening, then becoming partly cloudy late in
the night. A slight chance of showers and thunderstorms after
midnight. Unseasonably mild. Lows in the lower 60s. South winds
5 to 10 mph in the evening, becoming west after midnight. Chance
of precipitation 20 percent. 
.SUNDAY...Mostly sunny. Highs in the upper 70s inland, but only
in the upper 60s near the lake. Northeast winds 5 to 10 mph. 
.SUNDAY NIGHT...Mostly cloudy. Lows in the mid 50s. East winds
5 to 10 mph in the evening, becoming southeast after midnight. 
.MONDAY...Mostly cloudy. A slight chance of showers and
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. More humid with highs in the mid
80s. South winds 10 to 15 mph. Gusts up to 25 mph in the
afternoon. Chance of precipitation 50 percent. 
.MONDAY NIGHT...Showers and thunderstorms likely in the evening,
then showers likely with a chance of thunderstorms after
midnight. Lows in the lower 60s. Southwest winds 5 to 10 mph.
Chance of precipitation 60 percent. 
.TUESDAY...Mostly cloudy. A chance of showers and thunderstorms,
mainly in the morning. Highs in the mid 80s inland, but only in
the upper 70s near the lake. Chance of precipitation 50 percent. 
.TUESDAY NIGHT...Mostly cloudy. Showers with thunderstorms likely
in the evening, then a chance of showers and thunderstorms after
midnight. Lows in the lower 60s. Chance of precipitation
80 percent. 
.WEDNESDAY...Partly cloudy with a 20 percent chance of showers.
Highs in the lower 70s. 
.WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. 
.THURSDAY...Mostly sunny. Highs in the mid 70s. 
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s. 
.FRIDAY...Partly cloudy. Highs in the lower 70s inland, but only
in the mid 60s near the lake. 
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. Chance of precipitation 30 percent. 
.SATURDAY...Partly cloudy in the morning, then becoming mostly
cloudy. A 30 percent chance of showers. Highs in the lower 70s
inland, but only in the mid 60s near the lake. 

12-48 Hr Surface, 12-48 Hr ETA 500mb/Sfc, TWC Forecast, Fire Danger, Day 1 Precip, Day 2
NGM 60 Hr Forecast Meteograms : Springfield , Peoria , Quad City , Chicago (O'Hare) , Rockford ,

                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY     120 DAY    180 DAY
                                           NOV05   NOV05-JAN06 DEC05-FEB06 FEB06-APR06
                 -----------  -----------  --------  ---------  ---------  ---------
   Temperature:      Below        Below      Above     Normal     Normal     Normal
 Precipitation:      Below        Below     Normal     Normal     Normal     Normal

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy

Saturday May 18, 2024 the 139th Day of Year

---------------------------------------------------
SUN
Declination 19.880000
Distance 0.999717 AU
Rise 06:41 EDT Set 21:11 EDT
Transit Meridian 13:55 EDT
Civil Twilight Begins 06:11 EDT Ends 21:41 EDT

Calculations made for central point in the state.
Time in ET -- and will vary due to location and
elevation -- Priddy

////////////////////////////
MAY 18TH...HISTORIC WEATHER EVENTS
...1825...
A tornado (said to have crossed all of the state of Ohio) smashed into the
log cabin settlement of Burlington, northeast of Columbus. (David Ludlum)
...1960...
Salt Lake City UT received an inch of snow. It marked their latest
measurable snowfall of record. (The Weather Channel)
...1980...
Mount Saint Helens (in Washington State) erupted spewing ash and smoke
sixty-three thousand feet into the air. Heavy ash covered the ground to the
immediate northwest, and small particles were carried to the Atlantic
coast. (David Ludlum)